Buonconsiglio Castle was originated from a fortified building was erected in the 13th century next to the city's walls. This first building was called Castelvecchio ('Old Castle'), and was the seat of the Bishopric of Trent from the 13th century onwards to the end of the 18th century. The castle is composed of a series of buildings of different eras, enclosed by a circle of walls in a slightly elevated position above the town.
The Castelvecchio is the oldest and most dominant building of the entire housing development. The Magno Palazzo is the 16th expansion in the forms of the Italian Renaissance, wanted by the Prince Bishop and Cardinal Bernardo Clesio (1485-1539), the third part, in the southern end of the complex is the known Eagle tower, which preserves the famous Cycle of the Months, one of the most fascinating pictorial cycles of profane the late Middle Ages.
Bishop George of Liechtenstein was the first to enlarge the castle, in the late 14th century, turning it into a well-styled residence. The Castelvecchio was further modified by Johannes Hinderbach, who had the double loggiato and the Gothic entrance gate built. In the first decades of the 16th century, Bishop Bernardo Clesio had a new residence, called Palazzo Magno ('Grand Palace') built in Renaissance style alongside the old castle. The last great addition was the so-called Giunta Albertiana, from the name of Bishop Francesco Alberti Poja (1686), with which the Castelvecchio and the Palazzo Magno were united.
The castle remained the seat of the Prince-Bishops until 1803. Used by the Austrians as military barracks and, later, as a jail, it decayed. In the 1920s, when Trento was returned to Italy, it became seat of a National Museum and was restored. Since 1992 it is home to the Provincial Gallery of Art.
According to legend, it was connected by a secret tunnel to the city's cathedral, which allowed the prince-bishops to move unseen between them.
References:The Clementinum is a historic complex of buildings in Prague. Until recently the complex hosted the National, University and Technical libraries, the City Library also being located nearby on Mariánské Náměstí. The Technical library and the Municipal library have moved to the Prague National Technical Library at Technická 6 since 2009. It is currently in use as the National Library of the Czech Republic.
Its history dates from the existence of a chapel dedicated to Saint Clement in the 11th century. A Dominican monastery was founded in the medieval period, which was transformed in 1556 to a Jesuit college. In 1622 the Jesuits transferred the library of Charles University to the Klementinum, and the college was merged with the University in 1654. The Jesuits remained until 1773, when the Klementinum was established as an observatory, library, and university by the Empress Maria Theresa of Austria.